Tuesday, 15 January 2013
Total Marks = 20
Question:
An I/O device transfers data at a rate of 5MB/s over a 100MB/s bus. The data is
transferred in 5KB block. If the processor operates at 400MHz, and it takes a total of 4000 cycles to handle each DMA request, find the fraction of CPU time handling the data transfer with and without DMA.
Question:
An I/O device transfers data at a rate of 5MB/s over a 100MB/s bus. The data is
transferred in 5KB block. If the processor operates at 400MHz, and it takes a total of 4000 cycles to handle each DMA request, find the fraction of CPU time handling the data transfer with and without DMA.
